1. 20 + _____ = 40 + ____ : _________________________________
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2. (7 x 6) x 5 = _____ (6 x ____) : _________________________________
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3. (6 + 12) + (5 + 7) = (5 + ___) + (___ + 12) : _____________________________
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4. 7 x (10 + 5) = (_____ x 10) + (7 x _____) : _______________________________
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5. 24 + (36 + 50) = (_____ + _____) + 50 : _______________________________
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B. Use the properties to make the following equations true by filling the missing number/s.
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1. (7 x 1) + 0 = ___ x (1 + ___)
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2. 12 x ____ = ___ x 15
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3. ___ x (4 + 8) = (2 x ___) + (2 x ____)
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4. ___ + 240 = 460 + _____
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5. ___ + 240 = 460 + _____
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